He also said this;

“I’ve been into this whole (background) check business for 20-some years; I’ve said the system is broken for 20 years and nobody listens,” he said. “It’s broken in terms of our military bases…. On the gun check, the NRA supported the gun check because we thought the mental records would be in the (national instant check) system, we thought criminals would be in the system. And we thought they would be prosecuted.”
http://presspass.nbcnews.com/_news/2013/09/22/20636650-nras-lapierre-calls-for-more-armed-personnel-after-navy-yard-shooting?lite

Yet his solution is more "good guys with guns".

I would have thought the logical thing to do would be to improve background checks, but what do I know.